Ameloblastoma MRI: Difference between revisions
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==MRI== | ==MRI== | ||
Head and neck [[Magnetic resonance imaging|MRI]] may be helpful in the diagnosis of [[ameloblastoma]]. Findings on MRI diagnostic of [[ameloblastoma]] include:<ref name="pmid16168260">{{cite journal |vauthors=Asaumi J, Hisatomi M, Yanagi Y, Matsuzaki H, Choi YS, Kawai N, Konouchi H, Kishi K |title=Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI |journal=Eur J Radiol |volume=56 |issue=1 |pages=25–30 |date=October 2005 |pmid=16168260 |doi=10.1016/j.ejrad.2005.01.006 |url=}}</ref><ref name="pmid16488178">{{cite journal |vauthors=Konouchi H, Asaumi J, Yanagi Y, Hisatomi M, Kawai N, Matsuzaki H, Kishi K |title=Usefulness of contrast enhanced-MRI in the diagnosis of unicystic ameloblastoma |journal=Oral Oncol. |volume=42 |issue=5 |pages=481–6 |date=May 2006 |pmid=16488178 |doi=10.1016/j.oraloncology.2005.10.001 |url=}}</ref> | Head and neck [[Magnetic resonance imaging|MRI]] may be helpful in the diagnosis of [[ameloblastoma]]. Findings on MRI diagnostic of [[ameloblastoma]] include:<ref name="pmid16168260">{{cite journal |vauthors=Asaumi J, Hisatomi M, Yanagi Y, Matsuzaki H, Choi YS, Kawai N, Konouchi H, Kishi K |title=Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI |journal=Eur J Radiol |volume=56 |issue=1 |pages=25–30 |date=October 2005 |pmid=16168260 |doi=10.1016/j.ejrad.2005.01.006 |url=}}</ref><ref name="pmid16488178">{{cite journal |vauthors=Konouchi H, Asaumi J, Yanagi Y, Hisatomi M, Kawai N, Matsuzaki H, Kishi K |title=Usefulness of contrast enhanced-MRI in the diagnosis of unicystic ameloblastoma |journal=Oral Oncol. |volume=42 |issue=5 |pages=481–6 |date=May 2006 |pmid=16488178 |doi=10.1016/j.oraloncology.2005.10.001 |url=}}</ref><ref name="SumiIchikawa2008">{{cite journal|last1=Sumi|first1=M.|last2=Ichikawa|first2=Y.|last3=Katayama|first3=I.|last4=Tashiro|first4=S.|last5=Nakamura|first5=T.|title=Diffusion-Weighted MR Imaging of Ameloblastomas and Keratocystic Odontogenic Tumors: Differentiation by Apparent Diffusion Coefficients of Cystic Lesions|journal=American Journal of Neuroradiology|volume=29|issue=10|year=2008|pages=1897–1901|issn=0195-6108|doi=10.3174/ajnr.A1266}}</ref> | ||
* Enhancement in the [[solid]] portion of the tumor. | * Enhancement in the [[solid]] portion of the tumor. | ||
* No enhancement in the [[cystic]] portion. | * No enhancement in the [[cystic]] portion. | ||
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* Thick rim-enhancement is seen. | * Thick rim-enhancement is seen. | ||
* Enhancement of small [[intraluminal]] [[nodules]]. | * Enhancement of small [[intraluminal]] [[nodules]]. | ||
* Helps in differentiation between [[Ameloblastoma|ameloblastomas]] and keratocystic [[odontogenic]] tumors. | |||
Revision as of 16:56, 10 October 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]
Overview
Head and neck MRI may be helpful in the diagnosis of ameloblastoma. Findings on MRI diagnostic of ameloblastoma include mixed solid and cystic pattern, thick irregular walls with papillary solid structures projecting into the lesion.
MRI
Head and neck MRI may be helpful in the diagnosis of ameloblastoma. Findings on MRI diagnostic of ameloblastoma include:[1][2][3]
- Enhancement in the solid portion of the tumor.
- No enhancement in the cystic portion.
- Detection of thick walls in ameloblastomas lesions.
- Round area of radiolucency if it is unicystic.
- Thick rim-enhancement is seen.
- Enhancement of small intraluminal nodules.
- Helps in differentiation between ameloblastomas and keratocystic odontogenic tumors.
References
- ↑ Asaumi J, Hisatomi M, Yanagi Y, Matsuzaki H, Choi YS, Kawai N, Konouchi H, Kishi K (October 2005). "Assessment of ameloblastomas using MRI and dynamic contrast-enhanced MRI". Eur J Radiol. 56 (1): 25–30. doi:10.1016/j.ejrad.2005.01.006. PMID 16168260.
- ↑ Konouchi H, Asaumi J, Yanagi Y, Hisatomi M, Kawai N, Matsuzaki H, Kishi K (May 2006). "Usefulness of contrast enhanced-MRI in the diagnosis of unicystic ameloblastoma". Oral Oncol. 42 (5): 481–6. doi:10.1016/j.oraloncology.2005.10.001. PMID 16488178.
- ↑ Sumi, M.; Ichikawa, Y.; Katayama, I.; Tashiro, S.; Nakamura, T. (2008). "Diffusion-Weighted MR Imaging of Ameloblastomas and Keratocystic Odontogenic Tumors: Differentiation by Apparent Diffusion Coefficients of Cystic Lesions". American Journal of Neuroradiology. 29 (10): 1897–1901. doi:10.3174/ajnr.A1266. ISSN 0195-6108.